don't take chantix if you've had a serious allergic or skin reaction to it. if you develop these stop taking chantix and see your doctor right away as some can be life-threatening. if you have a history of heart or blood vessel problems, tell your doctor if you have new or worse symptoms. get medical help right away if you have symptoms of a heart attack. use caution when driving or operating machinery. common side effects include nausea, trouble sleeping and unusual dreams. it helps to have people around you... they say, you're much bigger than this. and you are. [ male announcer ] ask your doctor if chantix is right for you. and you are. chances are, you're not made of money, so don't overpay for motorcycle insurance. geico, see how much you could save. [ male announcer ] make your escape... twice as rewarding. earn double points or double miles on all your hotel stays through march thirty first. sign up now at hiltondouble.com. >>> more now on our breaking news. law enforcement sources telling cbs's bob orr that adam lanza chose sandy hook elementary schoo